photoshop CS5 crashes when editing photos

My PS CS5 program crashes (locks up) after editing a series (5 -8) of jpg & RAW photos or after about 10 minutes. I tried the update editor, thinking there might be a patch, but it indicates it is up to date. I am not running any other programs and have the OS XPsp3.

I do have MS XP professional Version 2002 service Pack 3.
I didn't know there was a difference between locking up and crashing. What PS CS5 does is freezes up and then shuts down. No report is provided.

Another issue I am having is when printing photos to my Canon Pixma Pro9500. It does not print the correct image as edited and viewed on the monitor. It comes out too dark and the colors are off. So, as a result, I am back to using my PS CS2 program.

I did uninstall CS5 and reinstalled it and downloaded the latest updates. I should take a peek to see if it working. I haven't had the time because I am in the middle of a project that requires a lot of photo editing.

Try trashing your Photoshop preferences. Press and hold Alt+Control+Shift (Windows) or Option+Command+Shift (Mac OS) immediately after launching Photoshop. You will be prompted to delete the current settings.

(Mac OS only) Open the Preferences folder in the Library folder, and drag the Adobe Photoshop CS Settings folder to the Trash.

While it might not solve the crashing and freezing issue, often this does and is worth a try.